||Name|Took Office|Left Office|Party|
|---|---|---|---|---|
|1|Vasso Papandreou|21 February 1996|19 February 1999|Panhellenic Socialist Movement|
|2|Evangelos Venizelos|19 February 1999|13 April 2000|Panhellenic Socialist Movement|
|3|Nikos Christodoulakis|13 April 2000|24 October 2001|Panhellenic Socialist Movement|
|4|Akis Tsochatzopoulos|24 October 2001|10 March 2004|Panhellenic Socialist Movement|
|5|Dimitris Sioufas|10 March 2004|19 September 2007|New Democracy|
|6|Christos Folias|19 September 2007|8 January 2009|New Democracy|
|7|Kostis Hatzidakis|8 January 2009|7 October 2009|New Democracy|

Question: how many greek ministers of development were there before 2010?
Answer: 7